From: Anatol Belski <ab@php.net>
Date: Mon, 19 Mar 2018 10:44:27 +0000 (+0100)
Subject: Eliminate cast
X-Git-Tag: php-7.3.0alpha1~168
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=18750a2238e11edffced0cc5c8c6d159cfd8a781;p=php

Eliminate cast
---

diff --git a/Zend/zend_virtual_cwd.c b/Zend/zend_virtual_cwd.c
index 3e5e01114b..08769bcc3c 100644
--- a/Zend/zend_virtual_cwd.c
+++ b/Zend/zend_virtual_cwd.c
@@ -1454,7 +1454,7 @@ CWD_API int virtual_chdir(const char *path) /* {{{ */
 
 CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path)) /* {{{ */
 {
-	int length = (int)strlen(path);
+	size_t length = strlen(path);
 	char *temp;
 	int retval;
 	ALLOCA_FLAG(use_heap)
@@ -1462,10 +1462,10 @@ CWD_API int virtual_chdir_file(const char *path, int (*p_chdir)(const char *path
 	if (length == 0) {
 		return 1; /* Can't cd to empty string */
 	}
-	while(--length >= 0 && !IS_SLASH(path[length])) {
+	while(--length < SIZE_MAX && !IS_SLASH(path[length])) {
 	}
 
-	if (length == -1) {
+	if (length == SIZE_MAX) {
 		/* No directory only file name */
 		errno = ENOENT;
 		return -1;